6868049291 has 4 divisors (see below), whose sum is σ = 6962132232. Its totient is φ = 6773966352.

The previous prime is 6868049273. The next prime is 6868049299. The reversal of 6868049291 is 1929408686.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6868049291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6868049299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47041361 + ... + 47041506.

It is an arithmetic number, because the mean of its divisors is an integer number (1740533058).

Almost surely, 2^6868049291 is an apocalyptic number.

6868049291 is a deficient number, since it is larger than the sum of its proper divisors (94082941).

6868049291 is an equidigital number, since it uses as much as digits as its factorization.

6868049291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94082940.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 6868049291 is about 82873.6948072185. The cubic root of 6868049291 is about 1900.8352090715.

The spelling of 6868049291 in words is "six billion, eight hundred sixty-eight million, forty-nine thousand, two hundred ninety-one".